So I have two flocks: (1) 4 Buff Orps and 4 Leghorns, (2) an Australorp, a RIR, an Ameraucana, and a Buff Orp. They first flock is about 10 months old, the second flock about 5 months old. I've tried letting them free range in my backyard while putting them together at night, but the flocks just seem to stay on opposite sides of the yard, never interacting with one another. I've also tried putting both groups in an enclosed new spot while I carefully monitor them, but it seems the birds from the first flock. while pecking all the birds of the second flock, have a particular interest in destroying the Ameraucana (the smallest and most panicky of the bunch). Both flocks have been raised right next to one another for at about 2-3 months now (so I dont think quarantining should be a problem), and though the runs in which they were raised arent adjacent to one another, they are still close enough for each flock to be able to see one another. All that having been said, what do you guys think would be a good way to integrate the flocks? If you could provide an estimate of how long the method you propose would take, that would be fantastic Time is somewhat of the essence here, as none of my family members are able to watch over the birds for a period longer than a few days at a time (college and work).